<?xml version="1.0" encoding="UTF-8"?>
<html
    xmlns:ft="https://github.com/OpenType/fonttest"
    xmlns:xlink="http://www.w3.org/1999/xlink">
<head>
  <meta charset="UTF-8"/>
  <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Vollkorn|Vollkorn:i"/>
  <link rel="stylesheet" href="style.css"/>
</head>
<body>
<h3 id="GSUB-1">GSUB–1: Space Isn’t Nothing</h3>

<div class="desc">
  The <a href="../fonts/TestGSUBOne.otf">font</a> for this test case
  has a <em>contextual alternates</em> feature in its GSUB table that
  substitutes <em>a</em> by <em>a.alt</em> if followed by a
  space. Some versions of Adobe InDesign had a bug where space was
  treated like an empty substitution context.  If your implementation
  is correct, you should see two different glyphs in the rendering:
  the first letter should have an overbar, the second letter should
  not.
</div>

<table>
  <tr>
    <th>Expected</th>
    <td class="expected" ft:id="GSUB-1/1"
        ft:render="a a" ft:font="TestGSUBOne.otf"><svg version="1.1" viewBox="0 -250 1500 1000"><symbol id="GSUB-1/1.a.alt" overflow="visible"><path d="M28,484 L233,536 L433,447 L431,111 L492,40 L311,-21 L301,74 L214,-8 L35,-8 L8,195 L131,281 L284,307 L284,362 L144,391 L43,371 Z M283,229 L159,208 L163,142 L287,146 Z M36,695 L236,723 L457,694 L446,617 L236,626 L49,624 Z" /></symbol><symbol id="GSUB-1/1.space" overflow="visible"><path d="" /></symbol><symbol id="GSUB-1/1.a" overflow="visible"><path d="M28,484 L233,536 L433,447 L431,111 L492,40 L311,-21 L301,74 L214,-8 L35,-8 L8,195 L131,281 L284,307 L284,362 L144,391 L43,371 Z M283,229 L159,208 L163,142 L287,146 Z" /></symbol><use x="0" y="0" xlink:href="#GSUB-1/1.a.alt" /><use x="500" y="0" xlink:href="#GSUB-1/1.space" /><use x="1000" y="0" xlink:href="#GSUB-1/1.a" /></svg></td>
  </tr>

  <tr>
    <th>Observed</th>
    <td class="observed" ft:id="GSUB-1/1"/>
  </tr>

  <tr>
    <th class="conformance-header">Conformance</th>
    <td class="conformance" ft:id="GSUB-1/1"/>
  </tr>

</table>
</body>
</html>
